Table 6.
Principal Cause of Presenting and Best-Corrected Visual Acuity <20/63 in Cataract-Operated Eyes
| Principal Cause | Presenting Visual Acuity |
Best-corrected Visual Acuity All | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Beijing | Jiangshu | Guangdong | Heilongjiang | Jiangxi | Hebei | Xinjiang | Chongqing | Yunnan | All | ||
| PCO | 20 (23.8) | 7 (14.0) | 31 (23.9) | 20 (50.0) | 17 (23.3) | 32 (49.2) | 5 (7.9) | 11 (22.5) | 14 (18.9) | 157 (25.0) | 129 (30.4) |
| Refractive error* | 12 (14.3) | 2 (4.0) | 7 (5.4) | 3(7.5) | 16 (21.9) | 8 (12.3) | 7(11.1) | 8 (16.3) | 52 (70.3) | 115 (18.3) | 0 (0.0) |
| Retinal disorders | 9 (10.7) | 14 (28.0) | 15(11.5) | 5 (12.5) | 5 (6.8) | 2(3.1) | 28 (44.4) | 7 (14.3) | 0 (0.0) | 85 (13.5) | 73 (17.2) |
| AMD | 0 (0.0) | 7 (14.0) | 11 (8.5) | 3(7.5) | 4(5.5) | 1 (1.5) | 21 (33.3) | 4 (8.2) | 0 (0.0) | 51 (8.1) | 42 (9.9) |
| Diabetic retinopathy | 1 (1.2) | 0 (0.0) | 0 (0.0) | 0 (0.0) | 0 (0.0) | 0 (0.0) | 0 (0.0) | 2 (4.1) | 0 (0.0) | 3 (0.48) | 3 (0.71) |
| Retinal detachment | 1 (1.2) | 0 (0.0) | 1 (0.8) | 0 (0.0) | 0 (0.0) | 0 (0.0) | 3 (4.8) | 1 (2.0) | 0 (0.0) | 6 (0.96) | 6(1.4) |
| Other retinal | 7 (8.3) | 7 (14.0) | 3 (2.3) | 2 (5.0) | 1 (1.4) | 1 (1.5) | 4 (6.4) | 0 (0.0) | 0 (0.0) | 25 (4.0) | 22 (5.2) |
| Optic atrophy | 7 (8.3) | 1 (2.0) | 11 (8.5) | 0 (0.0) | 7 (9.6) | 5 (7.7) | 1 (1.6) | 2 (4.1) | 2 (2.7) | 36 (5.7) | 32(7.5) |
| Glaucoma | 7 (8.3) | 6 (12.0) | 6 (4.6) | 2 (5.0) | 2 (2.7) | 2 (3.1) | 4 (6.4) | 0 (0.0) | 1 (1.4) | 30 (4.8) | 29 (6.8) |
| Corneal opacity/scar | 6(7.1) | 0 (0.0) | 3 (2.3) | 4(10.0) | 1 (1.4) | 2 (3.1) | 2 (3.2) | 5 (10.2) | 2 (2.7) | 25 (4.0) | 24(5.7) |
| High myopia | 2 (2.4) | 4 (8.0) | 0 (0.0) | 1 (2.5) | 5 (6.9) | 0 (0.0) | 3 (4.8) | 7 (14.3) | 0 (0.0) | 22 (3.5) | 20 (4.7) |
| Amblyopia | 0 (0.0) | 2 (4.0) | 14(17.8) | 0 (0.0) | 0 (0.0) | 1 (1.5) | 2 (3.2) | 0 (0.0) | 0 (0.0) | 19 (3.0) | 11 (2.6) |
| Disorganized globe | 1 (1.2) | 0 (0.0) | 2 (1.5) | 0 (0.0) | 1 (1.4) | 1 (1.5) | 0 (0.0) | 0 (0.0) | 0 (0.0) | 5 (0.80) | 5 (1.2) |
| Other cause | 7 (8.3) | 11 (22.0) | 18 (13.9) | 0 (0.0) | 8 (11.0) | 9 (13.9) | 10 (15.9) | 8 (16.3) | 3(4.1) | 74(11.8) | 58(13.7) |
| Undetermined | 13 (15.5) | 3 (6.0) | 23 (17.7) | 5(12.5) | 11 (15.1) | 3 (4.6) | 1 (1.6) | 1 (2.0) | 0 (0.0) | 60 (9.6) | 44(10.4) |
| ALL (any cause) | 84 (100) | 50 (100) | 130 (100) | 40 (100) | 73 (100) | 65 (100) | 63 (100) | 49 (100) | 74(100) | 628 (100) | 425 (100) |
AMD = age-related macular degeneration; PCO = posterior capsule opacification.
Data are presented as no. (%) of eyes.
*
Includes only those improving to ≥20/32 with subjective refraction.